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Dear Colleagues,<br><br>
The G.R. Harrison Spectroscopy Laboratory and the Department of
Electrical Engineering and Computer Science would like to invite you to
the next seminar in our series on Modern Optics and
Spectroscopy.<br><br>
<br>
Date &
Time:<x-tab> </x-tab><x-tab> </x-tab>Tuesday,
November 9, 12 noon - 1 PM<br>
Location:<x-tab> </x-tab><x-tab> </x-tab>Grier
Room (34-401)<br>
Speaker:<x-tab> </x-tab><x-tab> </x-tab><b>Louis
Brus,</b> Columbia University<br>
Title:
<x-tab> </x-tab><x-tab> </x-tab><i>Rayleigh
scattering from single carbon nanotubes<br><br>
</i>Refreshments will be served following the talk.<br><br>
Abstract:<br>
<b>Louis Brus,</b> Columbia University<br>
<i>Rayleigh scattering from single carbon nanotubes<br>
</i>The research group at Columbia University investigated carrier
dynamics in SWNTs in micellar solution. They found that nonradiative
Auger recombination is an important mechanism of fluorescence quenching
in SWNTs. At low pH, nanotube surface endoperoxides protonate and
introduce holes that quench the luminescence. In order to characterize
electronic structure of SWNTs at the single-tube level, we developed a
method to detect white-light Rayleigh scattering from individual
tubes.<br><br>
<x-sigsep><p></x-sigsep>
Vinnie Russo * vrusso@mit.edu * Office Manager<br>
MIT; G.R. Harrison Spectroscopy Laboratory<br>
77 Mass. Ave., 6-014 * Cambridge, MA 02139<br>
(v) 617-253-9774 * (f) 617-253-4513</body>
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